The municipality of Álvaro Obregón is located in the west of Mexico City, and has a land surface of 96.17 km2, with an elongated shape from northeast to southwest.

It borders Miguel Hidalgo to the North, Benito Juárez and Coyoacán to the East, Magdalena Contreras, Tlalpan and Jalatlacalco municipality (State of Mexico) to the South, and Cuajimalpa to the West.

Together with Álvaro Obregón becomes the Western access to the city, and its regional roadways are the Federal Highway and the Freeway, which constitute the entry for merchandise and population from the states of Mexico and Michoacán.

It is geographically located between the parallels 19°; 14'N and 19°; 25'N and the meridians 99°; 10' W and 99°; 20'0 W. In the borough 4 types of soils dominate: For the region of San Ángel, Mixcoac, Tacubaya and adjacent areas around 2240 meters above sea level and up to 2,410, the climate is consistently mild with cool mornings and wetter than in Mexico City's downtown, averaging 15.5 °C (59.9 °F) and 943.1 mm (37.13 in) of rainfall yearly.

In the middle area, between 2,500 and 3,000 meters, exist mesophile forests that cover ravines and gullies with epiphytous vegetation such as mosses, ferns and woody creepers.

The region of great vegetation density comprises the high elevations, where there are located mixed forests, with abundancy in pines and oaks.

On June 17, 1959, the paleontologist Manuel Maldonado Koerdell, the professor Francisco González Rul and the archeologist Arturo Romano, investigated the fossils of a horse and a mammoth "archidiskidon impera tor leidy", that lived approximately between 8 and 10 thousand years before Christ.

Other findings were unveiled on August 27 of the same year in the banks of the San Ángel river, in the enlargement of Las Águilas Avenue, around the town of Tlacopac.

In the region the while tailed deer, the lynx and the coyote were once plentiful, but the presence of man, that for many years practised hunting in the higher parts of the territory, eliminated them.

Currently, between 2,500 and 3,000 meters above sea level there remains a large fauna, but because of its nearness to the population centers it is easily accessible and thus disturbed.